XML 134 R115.htm IDEA: XBRL DOCUMENT
v3.20.4

Regulatory Capital - Additional Information (Details) | Dec. 31, 2019
--- | ---
Regulated Operations [Abstract] |
Capital conservation buffer | 2.50%

X
- Definition Capital conservation buffer percentage. + References No definition available. + Details
Name: | hbnc_CapitalConservationBufferPercentage
Namespace Prefix: | hbnc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_RegulatedOperationsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration